Results 1 to 10 of about 1,264 (214)
Living Reviews in Solar Physics, 2005 We review the current status of local helioseismology, covering both theoretical and observational results. After a brief introduction to solar oscillations and wave propagation through inhomogeneous media, we describe the main techniques of local ...
Aaron Birch +2 more
exaly +5 more sources
Seismology of active regions: Current status and perspectives
Frontiers in Astronomy and Space Sciences, 2023 The goal of helioseismology is to provide accurate information about the Sun’s interior from the observations of the wave field at its surface. In the last three decades, both global and local helioseismology studies have made significant advances and ...
Sushanta Tripathy
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Sub-surface plasma flows and the flare productivity of solar active regions
Frontiers in Astronomy and Space Sciences, 2022 The extreme space weather conditions resulting from high energetic events likes solar flares and Coronal Mass Ejections demand for reliable space weather forecasting.
B. Lekshmi +5 more
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Radial gradient of the solar rotation rate in the near-surface shear layer of the Sun
Frontiers in Astronomy and Space Sciences, 2022 We study the radial gradient of the solar rotation rate in the near-surface shear layer (NSSL) from about .950 R⊙ to the solar surface and its variation during Solar Cycles 23 and 24 with ring-diagram analysis applied to Global Oscillation Network Group (
Rudolf Komm
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Frontiers in Astronomy and Space Sciences, 2023 We have on hand some 25 years of nearly uninterrupted high-quality and high-cadence global helioseismic data. The Global Oscillations Network Group (GONG) project has been producing science quality data since 1995, the Michelson Doppler Imager (MDI ...
Sylvain G. Korzennik
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Deciphering Solar Magnetic Activity: On Grand Minima in Solar Activity
Frontiers in Astronomy and Space Sciences, 2015 The Sun provides the energy necessary to sustain our existence. While the Sun provides for us, it is also capable of taking away. The weather and climatic scales of solar evolution and the Sun-Earth connection are not well understood.
Scott William Mcintosh, Robert J Leamon
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Waves from the Sun: to the 100th anniversary of V.A. Troitskaya’s birth
Solar-Terrestrial Physics, 2017 It has been one hundred years since the birth of the outstanding scientist Professor V.A. Troitskaya. Her remarkable achievements in solar-terrestrial physics are widely known. For many years, Valeria A.
Guglielmi A.V., Potapov A.S.
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Effects of localized horizontal flow patterns on eigenfrequencies of stellar global modes [PDF]
Serbian Astronomical Journal, 2005 The main goal of this paper is to estimate the significance of effects the flow profile U0(z) induces on computed global oscillation spectra. We solve numerically the eigenvalue problem for the described basic state configuration with reference to solar ...
Čadež V.M., Vanlommel P.
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Frontiers in Astronomy and Space Sciences, 2019 Since the first observations of solar oscillations in 1960, helioseismology has probably been one of the most successful fields of astrophysics.
Gaël Buldgen +4 more
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The Astrophysical Journal, 2023 In this paper, we refine a previously developed acoustic source filter, improving its reliability and extending its capabilities. We demonstrate how to fine-tune the filter to meet observational constraints and focus on specific wave-front speeds.
Shah Mohammad Bahauddin, Mark Peter Rast
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